Liquid strainer



May 23, 1 933. w: D. SAUNDERS 1,910,774

LIQUID STRAINER Filed May 26. 1932 Patented May 23, 1933 UNITED: STATES WILLIAM B. SAUNDERS, orlnpacxsnuadvmemm LIQUID s'raarm Application filed May 26,

This invention relates to strainers for separating liquids from solids.

An object of the invention is to provlde .a strainer with a double strainin means, that is, the liquids or other materia s being separated are made to pass through two straining members instead of just one, thereby insuring a more complete straining action.

Another object of the invention is to provide a device in which the liquid or other material being strained is forced to pass upwardly through one of the straining elements, this upward movement of the liquid greatly facilitating th'estraini-ng action.

The device is preferably used for straining milk and separating the impurities therefrom, but is adapted to be used in connection with other liquids desired to be strained in which different weights or densities are present. It can also be used for extracting foreign matter from liquids.

In the drawing Fig. 1 is a sectional view of the strainer. Fig. 2 is a top plan view with parts broken away.

Referring to the drawing 6 indicates a milk can upon which the strainer may be mounted. 7 is a hopper shaped vessel preferably made of metal the upper end of which is open to receive the liquid being strained and the bottom 7a of which is provided with a central restricted neck portion 8 adapted to deliver the strained liquidto a receptacle. Within the neck 8 is removably mounted a. tubular member 9 having a bead 1O resting on the top of the neck 8 to support the straining elements above the level of the bottom of the hopper. The member 9 is provided at its upper end With a rim or bead 11, and with a horizontally extending flange 12 having recesses or openings 13 therein, said openings being covered by a straining material, and the rim of the flange 12 is bent down at right angles as at 15.

A straining cloth 16 extends across and is fastened to the top of the member 9 as by a clamping ring 17 and clamped in place around the rim 11 of the member by drawing the ends of the ring together by the screw 18. This cloth extends outwardly over the flange 1-2 and covers the openings therein and the 1932. Serial No. 613,725.

outer edge of the cloth is clamped between thefiange 15 and the side wall 19 of a bell shaped cover 20, as indicated at 21, and the cover also has an internal rib 22 which'is pressed down uponthe .cloth at the angle. The cover has a handle 23 by means .of which it may be removed, to uncover. and release the strainer cloth. I

Bythe means described the strainer cloth may be tightlyclamped upon the top ofthe tube 9. and-also clamped to the flange 15 by forcing, the cover down. By removing the cover and the'clamping ring the clothmay be removed for washing.

The upper end of the neck 8 extends slightly abovethe bottom 7 a of the hopper, thereby forming a well for the collection of dirt and settlings heavier than milk and which do not pass through the cloth. i e The hopper may have a dished top 24 with. m a central opening 25 which .will prevent splash when milk is poured in and which will also form aspace underv the outer part of the top forthe collection of floating material carried outtoward the outenwall of the hopper. Also, the projection of the rim 11 above the level ofthe flange 12 forms a sort of well in which any material which for any reason may have. passed upwardly through the strainer cloth, with a specific gravity greater so than the milk, would be caught or collected, while the milk would rise and flow over the rim and down through the tube 9.

In use, the milk or other liquid to be strained is poured through the opening in the g5 top 24 into the hopper, in quantity suflicient l to rise above the level of the cover 20, and rises slowly through the holes 13 and the cloth covering the same. Thence it flows downwardly through the cloth into the central tube 9 and out through the neck 8. It will be seen that the liquid is strained twice, once upwardly and then downwardly through the cloth.

The parts can be easily separated and 9 cleaned, and this is important. The cover 20, tube 9 and parts connected thereto can be lifted out of the hopper. Then the cover 20 can be pulled OE and the ring 17 removed to release the cloth and the separated parts 190 Washed or sterilized. The heavy sediment collecting on the bottom 7 a does not clog the cloth, and the device has other advantages which will be apparent to those skilled in the art.

I claim:

1. A strainer] comprising a ho per having an openingin the bottom, a tubular member fitting in said opening and having a perforated flange spaced above the bottom of the hopper, a strainer cloth extending over and secured to the top of the tubular member and covering said flange, and a cover enclosing said member and flange and clamping the edge of the cloth around the outer edge of the flange. 2; A strainer as in claim 1, the bottom of the hopper being belot'v the upper edge of the t'iibiilar member; I 7

3.141 strainer as in Claim 1, the bottom of the hopper having a neck depending from said opening and into which neck the lower end of the tubular member extends.

4. A strainer as iii clain'i 1, the bottom havan outlet nec'li and the tubular membefi having an externalproj ection' vvhich rests on the up er end of the ne'o and supports said member with its flange spaced above said bottom. p a 5; A strainer as in claim 1, and a ring clampin the cloth upon the upper end of said tribhla'r member.

3. A strainer comprising a hopper having an outlet neck at the bottom, a tubular member fitting its lower end in said neck and liavi'ngan inwardl projecting flange pro} VfCl'QCl' W113l1lYQkS ahlIl spaced from the bett'om and sid es oi' the hopper, a strainer fabric extending across the top of said member and ebvenfig "the holes in said flange, means to] clamp the fabric around the upper end of said membenahd a bell-shaped cover ex tendihg over said fabric and fitting and damping the ed e of the same against the dilt'ei'flrimbf the flange.

In testhironywhereof, 1; affi myfsignatnre.

' WILLIAM D. SAUNDERS. 

